Weber MiniMass 50

From Weber:

This attenuator has a main volume knob and 3-position treble compensation switch which affect the signal to the speaker. The line out signal is dependent on your amplifier settings.

Impedance selector for 4, 8, 16 ohms, 3-position treble compensation switch, MASS bypass switch, unbalanced line out. The MiniMASS employs an actual speaker motor for realistic interaction between the attenuator and the output circuit of the amplifier. The attenuation is continuously adjustable from about -3dB to over -50dB.

By turning the speaker control to minimum (maximum attenuation), the unit may be used as a dummy load for testing or for DI use.

5.5” x 5.5” footprint (add 1” in front for knob). 3.75” tall. 3.35 lbs. 

1 x 1/4" Input, 1 x 1/4" Line Out, 1 x 1/4" Output to Speaker 

This pedal works nicely as intended and is in good condition, showing some moderate external wear as can be seen in photos.